Silence autoconf warnings
authorAndrea Canciani <ranma42@gmail.com>
Fri, 10 Jun 2011 06:56:10 +0000 (08:56 +0200)
committerAndrea Canciani <ranma42@gmail.com>
Thu, 23 Jun 2011 08:47:43 +0000 (10:47 +0200)
commitd815a1c54ae6ea6ccd16dedb7f83db0d2526d637
tree7b2e7ec50ec4019b2d6e4192420126a9239ccb8a
parenta89f8cfaf11d0149b73ce40eca6e8a7f262f305a
Silence autoconf warnings

Autoconf 2.86 reports:

warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body

Every code fragment must be wrapped in [AC_LANG_SOURCE([...])]
configure.ac